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19953295 = 54219479
BaseRepresentation
bin100110000011…
…1011010001111
31101112201202221
41030013122033
520102001140
61551400211
7331412605
oct114073217
941481687
1019953295
111029922a
126823067
1341980ab
142915875
151b4214a
hex130768f

19953295 has 8 divisors (see below), whose sum is σ = 24003360. Its totient is φ = 15923040.

The previous prime is 19953293. The next prime is 19953313. The reversal of 19953295 is 59235991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19953295 - 21 = 19953293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19953293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2635 + ... + 6844.

It is an arithmetic number, because the mean of its divisors is an integer number (3000420).

Almost surely, 219953295 is an apocalyptic number.

19953295 is a deficient number, since it is larger than the sum of its proper divisors (4050065).

19953295 is an equidigital number, since it uses as much as digits as its factorization.

19953295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9905.

The product of its digits is 109350, while the sum is 43.

The square root of 19953295 is about 4466.9111251512. The cubic root of 19953295 is about 271.2303021791.

The spelling of 19953295 in words is "nineteen million, nine hundred fifty-three thousand, two hundred ninety-five".

Divisors: 1 5 421 2105 9479 47395 3990659 19953295